Features: Brand new and high quality Lightweight and portable, stable and reliable, wear resistant and can provides long-time. Through the MOS-tube output, this energy will be concentrated at the end of the welding pen, and it will be heated by short circuit. Fusethe nickel sheet firmly with the battery. Suitable for welding 18650/26650/32650 battery. The welding current approx. 90-150A, which is more than enough to welding common 0.1mm-0.15mm nickel plate. Specifications: Material:Electronic Component Voltage: 12V-15V Working current: 90-150A Size:Approx.79x45mm/3.11x1.77inches Note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1 Set Spot Welding Machine